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Table 1 Distribution of female total lung cancer, AC and SCC from 2001 to 2005 by quartiles of air pollutants between 1994 and 1998a

From: Cell type specificity of female lung cancer associated with sulfur dioxide from air pollutants in Taiwan: An ecological study

Variables All casesb AC SCC
  No. of cases ASR No. of cases ASR No. of cases ASR
SO2 concentration (ppb)
   ≤ 3.74 854 37.35 513 22.98 70 2.93
   3.74 - 5.52 1209 40.20 785 26.25 114 3.71
   5.52 - 7.75 1280 39.96 834 26.09 127 3.99
   > 7.75 1390 41.12 843 25.23 145 4.37
CO concentration (ppm)
   ≤ 0.55 574 38.35 336 22.84 64 4.29
   0.55 - 0.72 736 36.33 466 23.29 65 3.36
   0.72 - 0.88 1338 39.81 825 24.84 132 4.12
   > 0.88 2085 41.85 1348 27.31 195 3.72
NO2 concentration (ppb)
   ≤ 17.09 619 38.02 364 22.70 62 3.90
   17.09 - 22.18 900 38.92 554 24.47 91 3.85
   22.18 - 27.63 1176 39.24 732 22.46 124 4.19
   > 27.63 2038 41.21 1325 27.08 179 3.60
NO concentration (ppb)
   ≤ 5.29 726 38.43 430 23.53 74 3.96
   5.29 - 8.18 727 37.99 433 22.93 81 4.30
   8.18 - 12.37 1199 38.15 765 24.51 121 3.82
   > 12.37 2081 42.27 1347 27.65 180 3.66
O3 concentration (ppb)
   ≤ 19.18 1932 43.08 1252 28.39 174 3.85
   19.18 - 22.01 1208 37.13 761 23.45 123 3.87
   22.01 - 25.33 822 37.93 502 23.31 81 3.74
   > 25.33 771 39.83 460 24.54 78 3.96
PM10 concentration (μg/m3)
   ≤ 50.04 1302 39.28 814 25.06 109 3.22
   50.04 - 61.23 1362 40.83 884 26.67 126 3.72
   61.23 - 76.30 1168 42.88 737 27.35 119 4.42
   > 76.30 901 36.23 540 22.09 102 4.16
  1. a AC, adenocarcinoma; ASR, age-standardized incidence rate; CO, carbon monoxide; NO, nitric oxide; NO2, nitrogen dioxide; O3, ozone; PM10, particulate matter < 10 μm; SCC, squamous cell carcinoma; SO2, sulfur dioxide.
  2. b All cases included AC, SCC, large cell carcinoma, and small cell carcinoma.
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